#151F4D#151F4D

#151F4D is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.1% C 0.086 H 270.2°. Best body text is #FFFFFF at 15.73:1 contrast (WCAG AA passes).

Color values

HEX	#151F4D
RGB	rgb(21, 31, 77)
HSL	hsl(229, 57%, 19%)
HSV	hsv(229, 73%, 30%)
CMYK	cmyk(72.7%, 59.7%, 0%, 69.8%)
CIE-LAB	lab(13.68, 13.22, -29.82)
CIE-LCH	lch(13.68, 32.62, 293.91°)
OKLab	oklab(26.09% 0.0003 -0.0857)
OKLCH	oklch(26.09% 0.086 270.2)
XYZ	xyz(2.1383, 1.6750, 7.2304)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F4D #4D4315

analogous

#153B4D #151F4D #27154D

triadic

#151F4D #4D151F #1F4D15

tetradic

#151F4D #4D153B #4D4315 #154D27

square

#151F4D #4D153B #4D4315 #154D27

split-complementary

#151F4D #4D2715 #3B4D15

monochromatic

#070A18 #080C1D #151F4D #22327D #2F46AD

Accessibility & contrast

On white

15.73

#151F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#151F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F4D

15.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F4D	#FFFFFF	#000000	##FFFFFF
##151F4D	1.00	15.73	1.34	15.73
#FFFFFF	15.73	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01264F

Deuteranopia (green-blind)

#00214C

Tritanopia (blue-blind)

#002A32

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #151f4d;
/* rgb */ color: rgb(21, 31, 77);
/* oklch */ color: oklch(26.1% 0.086 270.2);

Tailwind

colors: {
  custom: {
    50: '#5a5a7f',
    500: '#151f4d',
    950: '#000000',
  },
}

SCSS

$custom: #151f4d;
$custom-light: #5a5a7f;
$custom-dark: #000000;

JSON

{
  "hex": "#151f4d",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 77
  },
  "hsl": {
    "h": 229.286,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.26087,
    "c": 0.08569,
    "h": 270.2
  },
  "luminance": 0.01675
}

Semantic roles & 50–950 ramp

primary

#151F4D

secondary

#857739

accent

#C547E0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #151F4D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →